ユーザー向け情報

閉じる

マイライブラリ
マイライブラリ

+ マイライブラリに追加

検索
検索

電話
テクニカルサポート利用方法

問い合わせ

新規お問い合わせ

電話

03-6550-8770

フォーラム（英語）

お問い合わせ履歴

新規お問い合わせ

電話

03-6550-8770

Profile

JP

RU CN DE EN ES FR IT JP KZ UZ PL BY ID
閉じる
サービス
スキャナー
Dr.Web vxCube
トライアル
ウイルスライブラリ
ナレッジベース

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

アンチウイルスに関する誤解と噂

ニュース

Trojan.Siggen21.1398

Added to the Dr.Web virus database: 2023-06-29

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '%APPDATA%\<File name>.exe'
Creates or modifies the following files
  • <SYSTEM32>\tasks\<File name>
  • %APPDATA%\microsoft\windows\start menu\programs\startup\<File name>.lnk
Creates the following files on removable media
  • <Drive name for removable media>:\usb.exe
  • <Drive name for removable media>:\contenttypes.rdf.lnk
  • <Drive name for removable media>:\indogerman2010.pptx.lnk
  • <Drive name for removable media>:\middaugh_keynote.pptx.lnk
  • <Drive name for removable media>:\waterresourcesag.pptx.lnk
  • <Drive name for removable media>:\gruenspecht_02172016.pptx.lnk
  • <Drive name for removable media>:\hypothyroidism_slides.pptx.lnk
  • <Drive name for removable media>:\accountsreceivable.ppt.lnk
  • <Drive name for removable media>:\ksearch_esa_talk.ppt.lnk
  • <Drive name for removable media>:\sacs_presentation_sacs_qep_improving_rt_education_final.ppt.lnk
  • <Drive name for removable media>:\sim_gametheory_to_finance.ppt.lnk
  • <Drive name for removable media>:\ppswamp.ppt.lnk
  • <Drive name for removable media>:\metac.ppt.lnk
  • <Drive name for removable media>:\asm.png.lnk
  • <Drive name for removable media>:\cbz.png.lnk
  • <Drive name for removable media>:\dissolveanother.png.lnk
  • <Drive name for removable media>:\breakpoint.png.lnk
  • <Drive name for removable media>:\ck_ugo.pem.lnk
  • <Drive name for removable media>:\tunpersonalca1.pem.lnk
  • <Drive name for removable media>:\hhhlcert.pem.lnk
  • <Drive name for removable media>:\delongcacert.pem.lnk
  • <Drive name for removable media>:\server.pem.lnk
  • <Drive name for removable media>:\investmentbankca_ca8.pem.lnk
  • <Drive name for removable media>:\ck.pem.lnk
  • <Drive name for removable media>:\10thingscondoms.pdf.lnk
  • <Drive name for removable media>:\7790_preview.pdf.lnk
  • <Drive name for removable media>:\fil_20060629111052.pdf.lnk
  • <Drive name for removable media>:\ff_ot_user_guide.pdf.lnk
  • <Drive name for removable media>:\clip_1080_5sec_10mbps_h264.mp4.lnk
  • <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.mp4.lnk
  • <Drive name for removable media>:\swc_2009-03-02.rdf.lnk
  • <Drive name for removable media>:\elvisimp.rdf.lnk
  • <Drive name for removable media>:\price.zip.lnk
  • <Drive name for removable media>:\subjectclassification.zip.lnk
  • <Drive name for removable media>:\contractualdeadlines.zip.lnk
  • <Drive name for removable media>:\1sm_price.zip.lnk
  • <Drive name for removable media>:\fiche_inscription_2015.zip.lnk
  • <Drive name for removable media>:\price030215.zip.lnk
  • <Drive name for removable media>:\disclosuredetails.xlsx.lnk
  • <Drive name for removable media>:\applicant.xlsx.lnk
  • <Drive name for removable media>:\highly_cited_2001.xlsx.lnk
  • <Drive name for removable media>:\2013_smccc_competition_points_jul2013.xlsx.lnk
  • <Drive name for removable media>:\cee_mmsprogram_summary_public.xlsx.lnk
  • <Drive name for removable media>:\fiche_inscription_2015.xls.lnk
  • <Drive name for removable media>:\removedtitles_records.xls.lnk
  • <Drive name for removable media>:\excel_example.xls.lnk
  • <Drive name for removable media>:\tree_view.html.lnk
  • <Drive name for removable media>:\productos.xls.lnk
  • <Drive name for removable media>:\contractualdeadlines.xls.lnk
  • <Drive name for removable media>:\babyboymaintoscenesbackground.wmv.lnk
  • <Drive name for removable media>:\passport_pal.wmv.lnk
  • <Drive name for removable media>:\flower_trans_matte.wmv.lnk
  • <Drive name for removable media>:\waterlandhealthkano.rtf.lnk
  • <Drive name for removable media>:\krsweden.rtf.lnk
  • <Drive name for removable media>:\myhrvoldhanssenbiharfamine.rtf.lnk
  • <Drive name for removable media>:\fungalnameauthors.rtf.lnk
  • <Drive name for removable media>:\pandp.rtf.lnk
  • <Drive name for removable media>:\military_callsigns_0311.rtf.lnk
  • <Drive name for removable media>:\digest.rdf.lnk
  • <Drive name for removable media>:\sioc.rdf.lnk
  • <Drive name for removable media>:\firefly1.mov.lnk
  • <Drive name for removable media>:\scan.mov.lnk
  • <Drive name for removable media>:\region-north-karelia.jpg.lnk
  • <Drive name for removable media>:\holycrosschurchinstructions.docx.lnk
  • <Drive name for removable media>:\hadac_newsletter_july_2010_final.docx.lnk
  • <Drive name for removable media>:\fi51.doc.lnk
  • <Drive name for removable media>:\lisp_success.doc.lnk
  • <Drive name for removable media>:\ovp25012015.doc.lnk
  • <Drive name for removable media>:\cveuropeo.doc.lnk
  • <Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc.lnk
  • <Drive name for removable media>:\applicantform_en.doc.lnk
  • <Drive name for removable media>:\hanni_umami_chapter.doc.lnk
  • <Drive name for removable media>:\sdksampleunprivdeveloper.cer.lnk
  • <Drive name for removable media>:\contosoroot.cer.lnk
  • <Drive name for removable media>:\contosoroot_1.cer.lnk
  • <Drive name for removable media>:\sdksampleprivdeveloper.cer.lnk
  • <Drive name for removable media>:\contoso_1.cer.lnk
  • <Drive name for removable media>:\sdkfailsafeemulator.cer.lnk
  • <Drive name for removable media>:\testcertificate.cer.lnk
  • <Drive name for removable media>:\dashborder_192.bmp.lnk
  • <Drive name for removable media>:\dashborder_120.bmp.lnk
  • <Drive name for removable media>:\dashborder_96.bmp.lnk
  • <Drive name for removable media>:\tileimage.bmp.lnk
  • <Drive name for removable media>:\coffee.bmp.lnk
  • <Drive name for removable media>:\toolbar.bmp.lnk
  • <Drive name for removable media>:\default.bmp.lnk
  • <Drive name for removable media>:\dialmap.bmp.lnk
  • <Drive name for removable media>:\split.avi.lnk
  • <Drive name for removable media>:\join.avi.lnk
  • <Drive name for removable media>:\nwfieldnotes1966.docx.lnk
  • <Drive name for removable media>:\issi2013_template_for_posters.docx.lnk
  • <Drive name for removable media>:\aoc_saq_d_v3_merchant.docx.lnk
  • <Drive name for removable media>:\sdszfo.docx.lnk
  • <Drive name for removable media>:\1189.jpg.lnk
  • <Drive name for removable media>:\thlps_keeper_mayer_1965.docx.lnk
  • <Drive name for removable media>:\pushkin.jpg.lnk
  • <Drive name for removable media>:\168.jpg.lnk
  • <Drive name for removable media>:\region-north-karelia.jpeg.lnk
  • <Drive name for removable media>:\210252809.jpeg.lnk
  • <Drive name for removable media>:\1189.jpeg.lnk
  • <Drive name for removable media>:\168.jpeg.lnk
  • <Drive name for removable media>:\trivial-merge.html.lnk
  • <Drive name for removable media>:\ituneshelpunavailable.html.lnk
  • <Drive name for removable media>:\adadsi.html.lnk
  • <Drive name for removable media>:\about.html.lnk
  • <Drive name for removable media>:\howto-index.html.lnk
  • <Drive name for removable media>:\iisstart.html.lnk
  • <Drive name for removable media>:\subjectclassification.xls.lnk
  • <Drive name for removable media>:\removedtitles_records.zip.lnk
  • <Drive name for removable media>:\tree_view.htm.lnk
  • <Drive name for removable media>:\64bit_notes.htm.lnk
  • <Drive name for removable media>:\iisstart.htm.lnk
  • <Drive name for removable media>:\alert.htm.lnk
  • <Drive name for removable media>:\trivial-merge.htm.lnk
  • <Drive name for removable media>:\browse.htm.lnk
  • <Drive name for removable media>:\about.htm.lnk
  • <Drive name for removable media>:\notepad.exe.lnk
  • <Drive name for removable media>:\skypesetup.exe.lnk
  • <Drive name for removable media>:\tcm851ax32.exe.lnk
  • <Drive name for removable media>:\wrar520.exe.lnk
  • <Drive name for removable media>:\dotnetfx45_full_setup.exe.lnk
  • <Drive name for removable media>:\utorrent.exe.lnk
  • <Drive name for removable media>:\browse.html.lnk
  • <Drive name for removable media>:\excel_example.zip.lnk
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath '<Full path to file>'
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath '%APPDATA%\<File name>.exe'
Modifies file system
Creates the following files
  • %APPDATA%\<File name>.exe
Sets the 'hidden' attribute to the following files
  • <Drive name for removable media>:\usb.exe
Deletes the following files
  • %APPDATA%\<File name>.exe
Substitutes the following files
  • %APPDATA%\<File name>.exe
Network activity
Connects to
  • '2.###.eu.ngrok.io':15528
UDP
  • DNS ASK 2.###.eu.ngrok.io
Miscellaneous
Creates and executes the following
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath '<Full path to file>'' (with hidden window)
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '<File name>.exe'' (with hidden window)
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath '%APPDATA%\<File name>.exe'' (with hidden window)
  • '<SYSTEM32>\schtasks.exe' /create /f /RL HIGHEST /sc minute /mo 1 /tn "<File name>" /tr "%APPDATA%\<File name>.exe"' (with hidden window)
  • '%APPDATA%\<File name>.exe' ' (with hidden window)
Executes the following
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '<File name>.exe'
  • '<SYSTEM32>\schtasks.exe' /create /f /RL HIGHEST /sc minute /mo 1 /tn "<File name>" /tr "%APPDATA%\<File name>.exe"
  • '<SYSTEM32>\taskeng.exe' {845805DB-711F-496C-8669-191A752429B1} S-1-5-21-1960123792-2022915161-3775307078-1001:cehycc\user:Interactive:[1]

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
Free trial

 

Download Dr.Web

Download by serial number

Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

Free trial

 

Download Dr.Web

Download by serial number

Download on App Store

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

Free trial

 

Download Dr.Web

Download by serial number

  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android

Free trial

14 days

Download now
Get it on Google Play